Chimney-cowl.



No. 759,789. 1 PATBNTED MAY 10, 1904.

B. s. WHITTON'. CHIMNEY GOWL.

APPLICATION FILED JUNE 3.1903.

NO MODEL.

WITNFSSES:

g A? M.

A TTOBNE YSA UNITED STATES Patented May 10, 1904.

PATENT OFFICE.

CHlMNEY-COWL.

SPECIFICATION forming part of Letters Patent No. 759,789, dated May 10, .1904.

Application filed June 3, 1903. Serial No. 159,882. (No model.)

To all whom it may concern:

Beit known that I, BEAUMONT S. WHITTON, a'citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have made certain new and useful Improvements in Ohimney-Cowls, of which the following is a specification.

My invention is an improvement in chimn ey-cowls; and it consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation, and Fig. 2 is a vertical longitudinal section, of a cowl embodying my invention. Fig. 3 is a cross-section on about line 3 3 of Fig. 1. Fig. i is a cross-seetion on about line 4: 4 of Fig. 1. Fig. 5 is a cross-section showing a somewhat ditferent construction from that illustrated in the other views, and Fig. 6 is a cross-sectional view showing a still different construction.

By my invention I seek to provide means whereby to prevent downdrafts and increase the upward draft, giving a powerful updraft to the chimney, and I attain these results by the special construction shown, which I will i now describe.

The flu e-tube A is placed on top of the chimney and suitably secured over the flue-opening, as shown in Fig. 2. As shown and preferred, the lower end of the flue-tube A is flared-at A to properly lit over theflue in the chimney B and receive smoke, &e., from said flue in the use of the invention. This fluetube is a plain tube extending practically the same size throughout and may be angular in cross-section, as shown in Fig. 4;, or be round, as shown in Fig. 5.

The draft-casing C extends around the fluetube A and is made sufficiently larger than the flue-tubeto provide a draft-space I) around the tube A and between the same and the draft-casing C. I support the draft-casing from the flue-tube, it may be by bolts, as shown at E, and the said casing is arranged at its lower end slightly above the lower end of the tube A and has the outwardly-flared funnel-like collector C at such end, as shown in Figs. 1 and 2. The draft-easing 0 extends at its upper end above the tube A and is procharge, as indicated by the arrows.

vided at such end with the reduced or inwardly-tapering portion C affording a discharge-opening at the top of the draft-casing of about the same size as the tube A, as will be understood from Figs. 1 and 2 of the drawings. Above the casing G, I arrange the cylindrical cap F, which may be slightly larger than the casing C and is supported from said casing by means of legs or uprights G and Gr, as shown in Figs. 1 and 2 of the drawings. Between these legs or uprights G and G are formed outlet or discharge openings g, through which the products of combustion may dis- At its upper end the cap F is provided with a tubular portion F, which is connected with the body of the cap F by the flared portion F as shown in Figs. 1 and 2 of the drawings. Within the body of the cap F, I support the inverted cone H, which operates as a deflector or spreader for the smoke, &c., discharged from the flue A and has its top or head I eonvexed or sloping downwardly toward its several sides to shed rain, &c. and also to deflect outwardly any downdraft that may enter the upper end of the cap.

It will be noticed the conical deflector H is concentric with the tube A and is somewhat larger at its widest point than the opening in the upper end of the draft-casing (J, so that water dripping "from the sloping head I of the said cone H will not enter the draft-casing and flue-tube, as will be best understood from Fig. 2 of the drawings. In supporting the cone II I may employ the lateral pins J, extending therefrom through suitable openings in the body of the cap F, as will be understood from Figs. 1, 2, and 3 of the drawings.

By means of the draft-casing with its flared end or enlarged throat U and its upper narrowed or reduced end 0 I am able to create a powerful updraft, which is aided by coming in contact with the hot air in the flue Aand discharged at the upper end of the hue and easing, any counter current from the top of the cap F being diverted by the sloping head of the deflector-cone and being driven with the products of combustion and updraft out through the holes 7 at the base of the cap, as shown and before described.

In operation the flue-tube may be square or round, as shown in Figs. 4 and 5, and the draftcasing may be round or square, as shown in Figs. 4 and 5, and the cowl may, in whole or part, be made of any suitable material, such as galvanized iron, copper, terra-cotta, castiron, or any desired combination of these materials.

1t willbe understood that the flue-tube A may be built at its lower end into the top of the chimney, as indicated in Figs. 1 and 2 of the drawings. It may also be preferred in practice to make the inner and outer tubes both rectangular, as illustrated in Fig. 6 of the drawings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The improvement in chimney-cowls herein described, consisting of the flue-tube, the draft-casing fitting around and supported from said flue tube and having the outwardlyfiared or enlarged throat at its lower end and the reduced inwardly-tapering portion at its upper end, the latter being above the upper end of the flue-tube, the cap above the draftcasing, the legs or uprights supporting the cap from the draft-casing and affording discharge-openings between the same, the upper end of the cap being reduced, and an inclined connecting portion being provided between said reduced end of the cap and the body thereof, and the inverted deflector-cone supported in the cap above the draft-casing, and having its upper side or head sloping downwardly to its outer edge, said cone being made at its largest point larger than the dischargeopening of the draft-casing, substantially as and for the purposes set forth.

2. The combination of the flue-tube, the draft-casing encircling the flue-tube, and extending from a point considerably below the upper end of said tube to a point above the said tube and terminating at its upper end adjacent to the upper end of said tube, the cap above the draft -casing, and legs or uprights supporting the cap, lateral draft-spaces being afforded between the cap and the upper end of the draft-casing, and deflector devices within the cap.

BEAUMONT S. XVHITTON. Vitnesses:

ELIZABETH G. HORNE, JOHN HORNE. 

